Temporary binder.



Pate'nted Oct. `-28 TEMPonAm BINDER.

med Nom-25,1901.)

E. L. KRAG.

(A'pplicaion (No Model wuaroumo.. wAsMmuYnN. n. c,

Tnt Nonms mins aov UNITED STATES l PATENT KOEEICE.

ERIK L. KRAG, OF CHICAGO, ILLINOIS.

TEMPORARY BINDER.`

SPECIFICATION forming part of Letters Patent N o. 712,077, dated October 28, 1902. Application filed November 25, 1901. Serial No. 83,671. (No model.)

To all whom tm/ay concern:

Be it known that-I, ERIK L. KRAG, a citizen of the United States,- residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Temporary Binders, of which the following is a specification. Y

The object of this invention is Vthe production of a binder for loose leaves embodying the improvements hereinafter described.

In the accompanying drawings, Figure l is a fragmental View of atemporary binder embodying my improvements, affording'an inside face view ofthe hinge-back o f the binder. Fig. 2 is a view of the rear side of the hingeback removedfrom the binder. Fig-3 is a transverse central section'through the hingeback. Fig. 4: is a similar view showing thehinge-back opened for the insertion or removal of leaves. Fig. 5 isa perspective view4 of one of the pairs of holding-pins used in this binder.

Like letters of reference indicate corresponding parts'throu'ghout the several views.

A represents the covers, of ordinary construction, and B is the hinge-back of the binder. This hinge-back is-composed of the two hinge members Band B2, pivotally oonnected at their adjacent edges by means of the pintle B3. About midway of the length of the member-B and rigidly fixed to the face thereof is a stop-plate B4, the inner end of which stop-plate extends somewhat beyond the member B to limit the pivotal movement of said hinge'members in one direction. In the outer edge of each of the hinge members B and B2 I form two notches B5 for the reception of the holding-pins of the binder. These pins are formed in pairs from one piece of wire held rigidly to the back of the hinge member B' or B2 by rivets B6', extending through the openings B7 adjacent to said notches B5. The holding-pins on opposite sides of the binder are intended to shut by one another and are placedat some little distance apart lengthwise of the hinge members.

C designates the holding-pins formed in pairs from a single piece of wire and secured to the rear side of the hinged members by the rivets B, passing through the openings B7 and through the loops C', formed in the wire composing the body portions C2 of said holding-pins. The portion of each of these pins that projects above the face of the hinge members B'and B2 is curved in an arc substantially concentric with the pintle B3. The

pins are held firmly within the notches B5v and are adapted to pass through suitable perforations in the leaves C3, which-the binder is intended to hold. The presence of the stopplate B4 makes it unnecessary for the holding-pin C to be of a length' sufcient to impinge against the opposite hinge member, Vand consequently it is not necessary to open the binder so widein order to remove the leaves C3 therefrom as it would be were said pins ofgreater length.

A strip D of canvas or other suitable material is attached to the rear side of each of the hinge members B and B2, lying between'said members and the body portion C2 of the holding-pins C and being secured in position by any suitable means, as by the rivets D and securing-plates D2. lBy means of this stripD the covers A of the binder are flexibly attached to the hinge-back'B.

In use suitably-perforated leaves C2 may be inserted into this binder by opening the same upon its hinge-back, as shown in Fig. 4. The points of the holding-pins C on opposite sides of the back overlap each other but slightly when the binder is closed, and when it is opened a clear space of a considerable width is presented between the outer ends of the opposing pins, making easy the insertion or withdrawal of leaves.

Various slight changes might be resorted to in the general form and arrangement of the several members hereinbefore described without departing from the spirit vand scope of my invention. I therefore desire to have it understood that I do not limit myself to the precise details herein set forth.

I claim as my inventionl. In a temporary binder, in combination, two back members hinged together and having notches formed in their outer edges and an opening near each of said notches; curved holding-pins projecting through said notches above the face of said back members, said pins being formed in pairs having a body portion and a loop formed in said body portion IOO adjacent to said openings; and a rivet extending through said opening and through said loop for securing the holding-pins in position.

2. In a temporary binder, in combination, two back members hinged together; two notches in the outer edge of each of said back members extending through said back members at a point adjacent to said members; holding-pins projecting through said notches and curving over the faces of said back members in the arc of a circle substantially concentric with the pivotal center of said hinged members, said holding-pins being formed of a single piece of Wire and having a body portion provided with a loop adapted to coincide with each of the openings extending through each of said back members; and a rivet extending through each of said openings to the adjacent loop of the body portion of the holding-pins to secure said body portion to the rear side of said back member.

3. In a temporary binder, in combination, two back members hinged together and having notches formed in their outer edges and an opening near each of said notches; curved holding-pins projecting through said notches above the face of said back members, said pins being formed in pairs having a body portion and a loop formed in said body portion adjacent to said openings; a rivet extending through said opening and through said loop for securing the holding-pins in position; and a stop-plate on one of said members, extending over the pivotal connection between said members and adapted to engage the other member to limit the hinge movement of said members.

ERIK L. KRAG.

Witnesses:

L. L. MILLER, GEO. L. CHlNDAnL. 

